-Ministry of Planning and Research. Mainly responsible for management, information, finance, cooperation plan, etc. Korea Electric Power Research Institute (KEPRI) belongs to this department.
-General Affairs Department. Mainly responsible for human resources, education and so on. Including six institutions including Korea Electric Power Center Education Research Institute (CEI).
-Marketing Department. Mainly responsible for electricity sales, demand side management, power distribution management and other businesses, with 190 regional office.
-Power transmission department. This department is fully responsible for the main business of South Korea's 765 kV power transmission and transformation project, including power transmission and transformation management, power production planning, communication system and network, regional power transmission and transformation departments (including 1 1 regional power supply department and three construction units).
—— Foreign Affairs and KEDO Engineering Department. Mainly responsible for overseas project management and KEDO (Korean Peninsula Energy Development Organization) projects. , with 7 branches.